|Keldîş Mstislav (savant matematician, preşedinte AŞ URSS)|
|Keldysh Mstislav (scientist in the field of mathematics and mechanics, President of the Soviet Academy of Sciences)|
|Келдыш Мстислав (ученый в области математики, механики, президент АН СССР)|
|Keldysh Mstislav - scientist in the field of mathematics and mechanics, President of the Soviet Academy of Sciences|
| Mstislav Vsevolodovich Keldysh (Мстислав Всеволодович Келдыш in Russian) (January 28 (N.S. February 10), 1911, Riga - 1978, Moscow) was a Soviet scientist in the field of mathematics and mechanics, academician of the Soviet Academy of Sciences (1946), President of the Soviet Academy of Sciences (1961 - 1978), three times Hero of Socialist Labor (1956, 1961, 1971).
Mstislav Keldysh was born to a Professor family that kept traditions of Russian nobility. His grandfather Mikhail Fomich Keldysh (1839-1920) was a military physician, who retired having military range of a General. Mstislav's grandmother Natalia Keldysh (nee Brusilova) was a cousin of famous general Aleksei Brusilov. Mstislav's maternal grandfather Alexander Nikolaevich Skvortsov was a General of Infantry, a hero of the Caucasian War.
Mstislav's father Vsevolod Mikhailovich Keldysh (1878-1965) was a Civil engineer, Major General of Engineering Service, full Professor (since 1918, taught at Kuibyshev Military Engineering Academy, Distinguished Engineering Scientist of Soviet Union (Заслуженный дестель науки и техники СССР) since 1944. He was one of the authors of contemporary methods for calculations of strength of reinforced concrete, and one of the authors of the project of Moscow Canal and Moscow Metro.
Mstislav Keldysh was a member of many foreign academies of sciences, including the Mongolian Academy of Sciences (1961), Polish Academy of Sciences (1962), Czechoslovak Academy of Sciences (1962), and Romanian Academy of Sciences (1965). He was also an honorary member of the American Academy of Arts and Sciences (1966), Bulgarian Academy of Sciences (1966), Hungarian Academy of Sciences (1970), and Royal Society of Edinburgh (1968), foreign corresponding member of the German Academy of Sciences (1966), and Saxonian Academy of Sciences in Leipzig (1966).
Mstislav Keldysh was awarded the USSR State Prize (1942, 1946), Lenin Prize (1957), six Orders of Lenin, three other orders, numerous medals and four foreign orders. A crater on the Moon is named after Mstislav Keldysh.